[Bug 212957] [radeon] kernel NULL pointer dereference during system boot

2021-05-27 Thread bugzilla-daemon
https://bugzilla.kernel.org/show_bug.cgi?id=212957

Dennis Foster (m...@dennisfoster.us) changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |PATCH_ALREADY_AVAILABLE

--- Comment #5 from Dennis Foster (m...@dennisfoster.us) ---
The issue is now resolved in kernel version 5.12.7

Link to the patch commit:
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.12.y=ec1bd01b632ad748dce8a0eeb4c167bead71315f

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[Bug 212957] [radeon] kernel NULL pointer dereference during system boot

2021-05-11 Thread bugzilla-daemon
https://bugzilla.kernel.org/show_bug.cgi?id=212957

--- Comment #4 from Dennis Foster (m...@dennisfoster.us) ---
Created attachment 296723
  --> https://bugzilla.kernel.org/attachment.cgi?id=296723=edit
journalctl - bad commit

Attached is a part of the system log after checking out the bisected commit.

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[Bug 212957] [radeon] kernel NULL pointer dereference during system boot

2021-05-11 Thread bugzilla-daemon
https://bugzilla.kernel.org/show_bug.cgi?id=212957

--- Comment #3 from Dennis Foster (m...@dennisfoster.us) ---
(In reply to Alex Deucher from comment #1)
> Can you bisect?

0575ff3d33cd62123991d2a5d0d8459d72592388 is the first bad commit
commit 0575ff3d33cd62123991d2a5d0d8459d72592388
Author: Christian König 
Date:   Thu Oct 8 13:01:35 2020 +0200

drm/radeon: stop using pages with drm_prime_sg_to_page_addr_arrays v2

This is deprecated.

v2: also use ttm_sg_tt_init to avoid allocating the page array.

Signed-off-by: Christian König 
Acked-by: Daniel Vetter 
Link: https://patchwork.freedesktop.org/patch/403832/

 drivers/gpu/drm/radeon/radeon_ttm.c | 11 ++-
 1 file changed, 6 insertions(+), 5 deletions(-)


I wasn't able to revert this commit on v5.12, because there's another commit
c67e62790f5c156705fb162da840c6d89d0af6e0 where it seems like that file was
changed drastically, in particular drm_prime_sg_to_page_addr_arrays() was
replaced with drm_prime_sg_to_dma_addr_array().

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[Bug 212957] [radeon] kernel NULL pointer dereference during system boot

2021-05-08 Thread bugzilla-daemon
https://bugzilla.kernel.org/show_bug.cgi?id=212957

Arvin (arvin.ke...@gmail.com) changed:

   What|Removed |Added

 CC||arvin.ke...@gmail.com

--- Comment #2 from Arvin (arvin.ke...@gmail.com) ---
I can confirm I have a similar issue on a laptop with AMD dual GPU (6520G + HD
6750M). The system boots to a graphical desktop (MATE + LightDM) and works fine
until I open a program with the discrete graphics (DRI_PRIME=1).

Going to bisect once I get the laptop later in the day.

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[Bug 212957] [radeon] kernel NULL pointer dereference during system boot

2021-05-05 Thread bugzilla-daemon
https://bugzilla.kernel.org/show_bug.cgi?id=212957

Alex Deucher (alexdeuc...@gmail.com) changed:

   What|Removed |Added

 CC||alexdeuc...@gmail.com

--- Comment #1 from Alex Deucher (alexdeuc...@gmail.com) ---
Can you bisect?

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